blob: d79e7bdad027412617c8cdab65e5ce680ad40225 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_CRYPTAUTH_CRYPTAUTH_ACCESS_TOKEN_FETCHER_H_
#define COMPONENTS_CRYPTAUTH_CRYPTAUTH_ACCESS_TOKEN_FETCHER_H_
#include <string>
#include "base/callback_forward.h"
namespace cryptauth {
// Simple interface for fetching the OAuth2 access token that authorizes
// CryptAuth API calls. Do not reuse this after calling FetchAccessToken();
// instead, create a new instance.
class CryptAuthAccessTokenFetcher {
public:
virtual ~CryptAuthAccessTokenFetcher() {}
// Fetches the access token asynchronously, invoking the callback upon
// completion. If the fetch fails, the callback will be invoked with an empty
// string.
typedef base::Callback<void(const std::string&)> AccessTokenCallback;
virtual void FetchAccessToken(const AccessTokenCallback& callback) = 0;
};
} // namespace cryptauth
#endif // COMPONENTS_CRYPTAUTH_CRYPTAUTH_ACCESS_TOKEN_FETCHER_H_